A seismic interpretation s needed to understand the data that is generated from the earthquake waves to understand the subsurface observations. The seismic attributes like the amplitude, phase, wave frequency are used in interpretation but most of them are based on attributes of amplitudes.
Instantaneous frequency is used to determine the thickness in beds and recognition through the Subtle faults and the Stratigraphic pinch outs.
Seismic stratigraphy is another field that is based on the depositional bedding planes of the earth's rocks mass fixed in there geologic history. Various types of techniques exist in this framework <u>like flooding surfaces maximum flooding surfaces and the erosion surfaces.</u>
"Island ArcsIsland arcs are long, curved chains of oceanic islands associated with seismic activity and mountain-building processes at certain plate boundaries. They occur where oceanic tectonic plates collide. Along one side of these island arcs, there is usually a long, narrow deep-sea trench.At island arcs, the denser plate is subducted and is forced into the partially molten mantle under the less dense plate. The islands are composed of the extrusive igneous rocks basalt and andesite. The basalt originates most likely from the plastic mantle. The andesite originates most likely from the melting of parts of the descending plate and sediments that had accumulated on its surface.Which list identifies minerals present in andesite from the greatest percentage by volume to the least percentage by volume?
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As the different situations and events gave rise to the seven different tectonic plates which comprises the over all structure of the planet, as there are a number of geological sites that took there shape because of the movement of the different planetary regions, layers, or the components which makes up the deep down trenches and the islands along with the different volcanic hotspots.
Mostly the subduction region is only due the movement or the sliding of the different tectonic plates which gives rise to a way different catastrophic events like the creation of the seismic way may generate the earth quakes inside the different regions.
Along, with that the different climates across the globe are also due the difference in such geological sites.
you will see contour elevation numbers. This is the elevation of the contour line, relative to mean sea level. Contour lines that are relatively close together indicate a slope that is fairly steep.
